ABSTRACT

The advancements in the potential development of high-strength steels have found numerous applications in the area of ballistic protection. The materials intended to be used for ballistic protection are required to be tested at a high strain rate to evaluate their performance. During the development stage, the performance of ballistic protection materials and their properties at high strain rates are of paramount importance in order to assess safety and structural integrity. The conformance of material properties to the specified standard levels of ballistic protection requires the mechanical characterization of developed materials at a high strain rate. The deformation behavior and true material response at these conditions are very essential for mapping the constitutive material properties. The high strain rate tensile testing of high-strength steels is carried out using an in-house developed split Hopkinson bar setup. The consistency and reliability of the results are established by testing materials from three different thickness plates. The dynamic stress-strain response of high-strength steel is recorded, which will help in developing a constituent model for the accurate numerical simulations of the dynamic loading of these materials.